TY  - JOUR
PY  - 2016//
TI  - Heart rate variability: pre-deployment predictor of post-deployment PTSD symptoms
JO  - Biological psychology
A1  - Pyne, Jeffrey M.
A1  - Constans, Joseph I.
A1  - Wiederhold, Mark D.
A1  - Gibson, Douglas P.
A1  - Kimbrell, Timothy
A1  - Kramer, Teresa L.
A1  - Pitcock, Jeffery A.
A1  - Han, Xiaotong
A1  - Williams, D. Keith
A1  - Chartrand, Don
A1  - Gevirtz, Richard N.
A1  - Spira, James
A1  - Wiederhold, Brenda K.
A1  - McCraty, Rollin
A1  - McCune, Thomas R.
SP  - 91
EP  - 98
VL  - 121
IS  - Pt A
N2  - Heart rate variability is a physiological measure associated with autonomic nervous system activity. This study hypothesized that lower pre-deployment HRV would be associated with higher post-deployment post-traumatic stress disorder (PTSD) symptoms. Three-hundred-forty-three Army National Guard soldiers enrolled in the Warriors Achieving Resilience (WAR) study were analyzed. The primary outcome was PTSD symptom severity using the PTSD Checklist - Military version (PCL) measured at baseline, 3- and 12-month post-deployment. Heart rate variability predictor variables included: high frequency power (HF) and standard deviation of the normal cardiac inter-beat interval (SDNN). Generalized linear mixed models revealed that the pre-deployment PCL*ln(HF) interaction term was significant (p<.0001). Pre-deployment SDNN was not a significant predictor of post-deployment PCL. Covariates included age, pre-deployment PCL, race/ethnicity, marital status, tobacco use, childhood abuse, pre-deployment traumatic brain injury, and previous combat zone deployment. Pre-deployment heart rate variability predicts post-deployment PTSD symptoms in the context of higher pre-deployment PCL scores.<br><br>Copyright © 2016. Published by Elsevier B.V.<p />  <p>Language: en</p>
LA  - en
SN  - 0301-0511
UR  - http://dx.doi.org/10.1016/j.biopsycho.2016.10.008
ID  - ref1
ER  -